Linux SSH Command Guide

Introduction

SSH (Secure Shell) is a protocol used to securely connect to remote servers and execute commands. It provides a secure channel over an unsecured network.

Usage

To connect to a remote server, use the following command:

ssh [user]@[hostname]

Common Options

• -p <port>: Specify the port to connect to.
• -i <identity_file>: Use a specific private key for authentication.
• -v: Enable verbose mode for debugging.

Examples

1. Connect to a remote server:

   ssh user@example.com
   

2. Connect using a specific port:

   ssh -p 2222 user@example.com
   

3. Connect using a specific private key:

   ssh -i /path/to/private_key user@example.com
   

4. Enable verbose mode:

   ssh -v user@example.com